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The socket is the female half of the High Flow Cupla. It accepts a plug of the same size, holds it in place and releases it again for disconnection. It normally sits on the fixed end of the line, for example on the supply line. Model HFL-4S, stainless steel, Seal material EPDM.

Quick connect coupling High Flow Cupla HFL-4S, stainless steel - Nitto Kohki 349829222

NITTO KOHKI Original product
Net price (excl. VAT)
€220.97
Item NKH-349829222
Manufacturer no. 349829222
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Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.349829222
ConditionNew
Article
NKH-349829222

Lines that are parted and remade during operation cost time when they are screwed together. The Nitto Kohki High Flow Cupla joins hose and pipe lines by hand and is available in the HFL-2, HFL-3 and HFL-4 sizes.

  • Connected and disconnected by hand, with no tools and without undoing a threaded joint
  • Coupling body in brass or in stainless steel, matched to the surroundings and to the medium
  • Seals in FKM or EPDM, so the material pairing suits the medium being carried
  • HFL-2, HFL-3 and HFL-4 sizes cover different line cross sections within one series
  • Socket and plug are available separately, so a damaged part can be replaced without renewing the whole connection

Technical data from the manufacturer catalogue

SeriesHI FLOW CUPLA / HI FLOW CUPLA BI Type
ModelHFL-4S
Coupling partSocket
End connectionFemale thread
Port sizeR 1/2
Body materialStainless steel, Brass
Seal materialEthylene-propylene rubber (EPDM), Fluoro rubber (FKM)
Max working pressure1.0 MPa {10 kgf/cm2}
Working temperatureEthylene-propylene rubber (EPDM): -40 to +150 deg C | Fluoro rubber (FKM): -20 to +180 deg C
Valve structureTwo-way shut-off
Applicable fluidsWater, Temperature control refrigerant
Vacuum service1.3x10-1 Pa {1x10-3 mmHg}. Socket only: -, Plug only: -, When connected: Operational.
Size range1/4 inch, 3/8 inch, 1/2 inch
Flow directionFluid flow can be bi-directional when socket and plug are connected.
Maximum tightening torque, stainless steel, Nm {kgf cm}HFL-2P / HFL-2S: 14 {143}, HFL-3P / HFL-3S: 22 {224}, HFL-4P / HFL-4S: 60 {612}
Maximum tightening torque, brass, Nm {kgf cm}HFL-2P / HFL-2S: 9 {92}, HFL-3P / HFL-3S: 12 {122}, HFL-4P / HFL-4S: 30 {306}
BI Type body materialStainless steel
BI Type applicable pipe size1/4 inch, 3/8 inch, 1/2 inch. See the stainless steel pipe, hose and tube size list for hose and tube size.
BI Type stainless steel pipe dia.HFL-2SP-BI 1/4: 1/4 (6.35 mm), HFL-2SP-BI 3/8: 3/8 (9.53 mm), HFL-3SP-BI 3/8: 3/8 (9.53 mm), HFL-3SP-BI 1/2: 1/2 (12.7 mm), HFL-4SP-BI 1/2: 1/2 (12.7 mm)
Mass0.050 kg
Part number349829222
Catalogue pageC01en-b, 159

Dimensions

Socket dimension sketchSocket dimension sketchLDTSchematic view of the dimension letters, not to scale.
How the dimension letters in the table map onto the part.
ModelLHøDT
HFL-4S602935Rc 1/2

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: L = overall length; H = width across flats or outside dimension; D = socket outside diameter; T = thread or barb size

Models in this series HI FLOW CUPLA / HI FLOW CUPLA BI Type

ModelApplicationBrass (g)Stainless steel (g)LHøDT
HFL-2SR 1/411099(47)1926Rc 1/4
HFL-3SR 3/8165150(49)2432Rc 3/8
HFL-4SR 1/2231211602935Rc 1/2

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

Two-way shut-offTwo-way shut-offshut-off valve in socketshut-off valve in plugSocketPlugFlow direction: socket to plug
Both halves close on disconnection, so the line contents are retained on both sides.
  • Both socket and plug have built-in automatic shut-off valves.
  • High flow rate type to increase cooling effect.
  • Quick connection and disconnection of cooling pipes.
  • Compact and space-saving design. Compared with the coupled length of SP CUPLA type A, that of HI FLOW CUPLA is reduced by 22%.
  • Installation and maintenance can be done within a short time.
  • BI Type: easy connection with stainless steel pipe.
  • BI Type: connection to plastic hose is possible with optional hose connection kit.
  • BI Type: connection to various tubes is also possible via the use of appropriate optional inserts.

Series comparison

SeriesMax working pressureSize rangeValve structureApplicable fluids
HI FLOW CUPLA / HI FLOW CUPLA BI Type10 bar1/4 inch, 3/8 inch, 1/2 inchTwo-way shut-offWater, Temperature control refrigerant
COMPACT ZEROSPILL CUPLA10 barThread 1/8 inch, 1/4 inchTwo-way shut-off (Spill Reduction)Air, Water
PURGE LINE CUPLA10 barInlet R 1/2, outlet socket (PV-30SM)One-way shut-offAir
HI CUPLA BL15 bar1/4 inch, 3/8 inch, 1/2 inch (thread and hose barb); SN type for urethane hose: for 6.5 x 10 mm, 8 x 12 mm and 8.5 x 12.5 mm hoseOne-way shut-offAir, Water
NUT CUPLA / NUT CUPLA 200 / ROTARY NUT CUPLA / HI CUPLA for Connection to Braided Hoses15 barUrethane hose ø5 mm x ø8 mm to ø11 mm x ø16 mm; braided hose ø9 mm x ø15 mmOne-way shut-offAir, Water
LOCK CUPLA 20015 barThread and hose barb 1/4 inch, 3/8 inch, 1/2 inch; SNRG type for ø6.5 mm x ø10 mm and ø8.5 mm x ø12.5 mm hoseOne-way shut-offAir
HI CUPLA Two Way Type15 barThread 1/4 inch, 3/8 inch, 1/2 inch. Hose barb for dia. 6.5 mm x dia. 10 mm and dia. 8.5 mm x dia. 12.5 mm hose.One-way shut-offAir
PURGE HI CUPLA15 barPVR Type: thread 1/2 inch, 3/4 inch, 1 inch; hose barb 1/2 inch, 3/4 inch, 1 inch hose. PV Type: thread 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inchOne-way shut-offAir

Pick HI FLOW CUPLA when the cooling or temperature control line has to be closed on both sides, since every peer series in this group except COMPACT ZEROSPILL CUPLA is one-way shut-off. Against COMPACT ZEROSPILL CUPLA, which is also rated 1.0 MPa {10 kgf/cm2} and two-way shut-off, HI FLOW CUPLA is the high flow rate version with a coupled length 22% shorter than SP CUPLA type A. Where the line runs at 1.5 MPa {15 kgf/cm2}, HI CUPLA BL, LOCK CUPLA 200 or the other one-way shut-off series carry the higher pressure.

Body and seal materials

Body material
Stainless steel
Brass
Seal materialMarkWorking temperatureRemarks
Ethylene-propylene rubber (EPDM)--40 to +150 deg C-
Fluoro rubber (FKM)--20 to +180 deg C-

Applications

  • Supply lines at assembly and test stations that are reconnected frequently
  • Connection of tools and devices that are used in alternation
  • Water carrying circuits with EPDM seals
  • Damp areas and washdown zones, where the stainless steel version is used
  • Test rigs and installations that are separated section by section for service or rebuild

Safety and application notes

  • Before use, please be sure to read the Safety Guide described at the end of this book and the Instruction Sheet that comes with the products.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 159. The complete catalogue is available for download on this page.

More Information
Manufacturer Nr. 349829222
Manufacturer Nitto Kohki
Weight 0.050000
GPSR manufacturer information Nitto Kohki Europe GmbH, Gottlieb-Daimler-Str. 10, DE-71144 Steinenbronn, www.nitto-kohki.eu
Article authenticity Original product
Condition of article New
Dichtungen EPDM, FKM
Anschlussgewinde R 1/2
Material Stainless steel
Betriebsdruck max [bar] 10.000000
Overall length [mm] 60.000000